shutterremainsopenaslongastheshutterreleasebuttonis
pressed.
burnin AtoolinPhotoshopthatallowsthephotographer
to makecertainareasofan imagedarker; similarto the
darkroomtechniqueofburning in wheremorelight was
given to a certain area of the paper.
calibration Theprocessof modifying oradjusting the
appearanceofanoutputdevice, forexampleascreen,or
printer for output.
circle of confusion Thearea of an image where it is
neither in or out of focus to the naked eye.
cleanimage Describesanimagewhereallunimportant
elementshave beenomitted,through cropping or strong
composition.
colourcast Theappearanceofthesubjectoroverallfinal
image whichisinfluencedbya strongcolourwithinthe
frame.Thiscanbefromanythingsuchasalightsourceor
alsothecastfromlightreflectingoffastrongbackground
or other element in the frame.
colour balance Varying colour temperatures can be
producedinanimagebyvariouslightingconditions;these
canbeneutralizedtogiveamorenaturalfeeltotheimage
tocreatecolourbalance.Colourtemperaturesaremeasured
in Kelvin (K).
colour management Techniques employed for
maintainingconsistentcolourrepresentationacrossvarious